Cleaning device for air cathode

Abstract

The utility model relates to the technical field of air cathodes, in particular to a cleaning device for an air cathode. The device comprises a water collecting tank, a water collecting groove is formed in the water collecting tank, adjusting air cylinders are horizontally fixed to the left side and the right side of the water collecting tank respectively, and the driving ends of the two adjusting air cylinders are connected with the left side and the right side of an adjusting support respectively; a portal is fixed to the upper portion of the adjusting support, linear sliding tables are vertically arranged on the left side and the right side of the portal respectively, lifting supports are connected to the two linear sliding tables respectively, a cleaning brush is horizontally arranged between the two lifting supports, and the two ends of the cleaning brush are connected with the lifting supports through bearings. One end of the cleaning brush is connected with one end of a driving motor through a coupler, and the driving motor is fixed to the side face of the lifting support. According to the utility model, the air side end face of the air cathode can be automatically cleaned, and the mass transfer efficiency of the air cathode is improved; the water collecting tank can collect cleaning liquid of the air cathode and discharge the cleaning liquid in a unified manner, so that the environment is prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the technical field of air cathodes, in particular to a cleaning device for air cathodes. Background Art

[0002] Microbial fuel cells are an emerging sewage treatment technology that can convert chemical energy in pollutants into electrical energy while treating sewage. The organic matter in the sewage is oxidized by the electricity-producing microorganisms attached to the anode, while the cathode accepts electrons to complete the oxygen reduction reaction. Among the cathodes of microbial fuel cells, the air cathode has attracted widespread attention because it can achieve direct diffusion and mass transfer of oxygen in the air and save a lot of aeration energy consumption.

[0003] The air cathode is made of carbon cloth, with one side exposed to the air and the other side exposed to water. Oxygen in the air enters the device through the diffusion layer of the air cathode, and finally directly participates in the reaction in the catalytic layer as an electron acceptor. The air cathode can not only save energy costs, but also improve reaction efficiency. It can be divided into a carbon-based layer, a diffusion layer, and a catalytic layer. One side of the air cathode is exposed to the air for the transfer and diffusion of oxygen. However, after a long period of use, dust in the air and seepage in the electrolyte will adhere to the side of the air cathode exposed to the air, which may affect the mass transfer efficiency at best, or cause blockage and affect the electrode life at worst. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned existing production technology, the present application provides an air cathode cleaning device, which can automatically clean the air side end surface of the air cathode and improve the mass transfer efficiency of the air cathode.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A cleaning device for an air cathode comprises a water collecting box, wherein a water collecting trough is arranged in the water collecting box, and adjusting cylinders are horizontally fixed on the left and right sides of the water collecting box, and the driving ends of the two adjusting cylinders are respectively connected to the left and right sides of the adjusting bracket; a door frame is fixed on the upper part of the adjusting bracket, and linear slides are vertically arranged on the left and right sides of the door frame, and the two linear slides are respectively connected to lifting supports, and a cleaning brush is horizontally arranged between the two lifting supports, and both ends of the cleaning brush are connected to the lifting supports through bearings, and one end of the cleaning brush is connected to one end of a driving motor through a coupling, and the driving motor is fixed to the side of the lifting support.

[0007] Furthermore, a water spray pipe is arranged between the two lifting supports, and both ends of the water spray pipe are respectively fixed on the two lifting supports. A plurality of water spray holes are arranged on the surface of the water spray pipe, and the plurality of water spray holes are evenly distributed along the length direction of the water spray pipe. One end of the water spray pipe is connected to one end of the water supply pipe, and the other end of the water supply pipe is connected to the water outlet end of the water pump, and the water inlet end of the water pump is connected to the first port of the three-way control valve, and the second port of the three-way control valve is connected to the liquid storage tank through the second branch pipeline, and the liquid storage tank is arranged in the control cabinet, and the third port of the three-way control valve is connected to the water storage tank through the third branch pipeline, and the water storage tank is arranged in the control cabinet.

[0008] Furthermore, an air jet pipe is arranged between the two lifting supports, and both ends of the air jet pipe are respectively fixed on the two lifting supports. A plurality of air jet holes are arranged on the surface of the air jet pipe, and the plurality of air jet holes are evenly distributed along the length direction of the air jet pipe. One end of the air jet pipe is connected to one end of the air supply pipe, and the other end of the air supply pipe is connected to the air compressor, and the air compressor is arranged in the control cabinet.

[0009] Furthermore, an air cathode positioning mechanism is provided at the open end of the water collecting tank, and the air cathode positioning mechanism can realize the positioning of the air cathode in the water collecting tank.

[0010] Furthermore, the air cathode positioning mechanism includes a thickness adjustment plate laterally arranged at the open end of the water collecting tank and a width adjustment plate longitudinally arranged at the open end of the water collecting tank, the two ends of the thickness adjustment plate are respectively connected to the left and right sides of the upper end surface of the water collecting tank by a first adjusting bolt, and a long waist-shaped first adjustment groove is set at the position where the left and right sides of the upper end surface of the water collecting tank are connected to the first adjusting bolt. The first adjusting bolt can adjust the installation position along the first adjustment groove, and the lower end of the first adjusting bolt is connected to the first locking nut, and the first locking nut can lock the position of the first adjusting bolt in the first adjustment groove. The front and rear ends of the width adjustment plate are respectively connected to the upper and rear sides of the upper end surface of the water collecting tank by a second adjusting bolt, and the middle part of the width adjustment plate is connected to the thickness adjustment plate by the second adjusting bolt. A long waist-shaped second adjustment groove is set at the position where the second adjusting bolt is connected to the upper end surface of the water collecting tank, and a long waist-shaped second adjustment groove is set at the position where the second adjusting bolt is connected. The second adjusting bolt can adjust the installation position along the second adjustment groove, and the lower end of the second adjusting bolt is connected to the second locking nut, and the second locking nut can lock the position of the second adjusting bolt in the second adjustment groove.

[0011] Furthermore, a drain outlet is provided on the bottom side of the water collecting tank, and the drain outlet is connected to the water collecting tank. The drain outlet can discharge the liquid collected in the water collecting tank out of the water collecting tank.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model can automatically complete the cleaning of the air side end face of the air cathode, thereby improving the mass transfer efficiency of the air cathode; the water collecting trough of the utility model can collect and uniformly discharge the cleaning liquid of the air cathode, thereby avoiding environmental pollution; the cleaning mechanism of the utility model can adjust the distance from the air cathode, thereby ensuring the cleaning effect; the air cathode positioning mechanism of the utility model can realize the positioning of the air cathode in the water collecting trough, thereby ensuring that air cathodes of different sizes can be positioned and arranged in the water collecting trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model.

[0015] Figure 2 It is a three-dimensional diagram of the circulation cleaning mechanism of the utility model.

[0016] Figure 3 This is a structural diagram of the air cathode positioning mechanism of the utility model.

[0017] Among them: 1. water collecting tank; 2. thickness adjustment plate; 3. width adjustment plate; 4. water collecting tank; 5. adjustment cylinder; 6. adjustment bracket; 7. linear slide; 8. lifting support; 9. cleaning brush; 10. drive motor; 11. door frame; 12. jet pipe; 13. water spray pipe; 14. air supply pipe; 15. water supply pipe; 16. water pump; 17. air compressor; 18. control cabinet; 19. three-way control valve; 20. liquid storage tank; 21. water storage tank; 22. drain outlet; 23. first adjusting bolt; 24. first adjusting tank; 25. second adjusting bolt; 26. second adjusting tank; 27. air cathode. DETAILED DESCRIPTION

[0018] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0019] like Figure 1 As shown, an air cathode cleaning device includes a water collecting box 1, in which a water collecting tank 4 for storing the lower part of the air cathode is arranged, and the water collecting tank 4 can collect the cleaning liquid generated when cleaning the air cathode 27. Adjusting cylinders 5 are horizontally fixed on the left and right sides of the water collecting box 1, and the driving ends of the two adjusting cylinders 5 are respectively connected to the left and right sides of the adjusting bracket 6, and the adjusting cylinders 5 can drive the adjusting bracket 6 to adjust the distance between the adjusting cylinder 5 and the air cathode 27.

[0020] like Figure 2As shown, a gantry 11 is fixed on the upper part of the adjustment bracket 6, and linear slides 7 are respectively arranged vertically on the left and right sides of the gantry 11, and the two linear slides 7 are respectively connected to the lifting supports 8, and a cleaning brush 9 is horizontally arranged between the two lifting supports 8. The two ends of the cleaning brush 9 are connected to the lifting supports 8 through bearings, and one end of the cleaning brush 9 is connected to one end of the driving motor 10 through a coupling, and the driving motor 10 is fixed to the side of the lifting support 8. The driving motor 10 can drive the cleaning brush 9 to rotate, and the cleaning brush 9 is closely attached to the air side end face of the air cathode for brushing. The linear slide 7 can drive the cleaning brush 9 to move up and down, so as to realize the brushing of the entire air side end face of the air cathode.

[0021] In order to improve the cleaning effect of the cleaning brush 9, as Figure 2 As shown, a water spray pipe 13 is arranged between the two lifting supports 8, and the two ends of the water spray pipe 13 are respectively fixed on the two lifting supports 8. A plurality of water spray holes are arranged on the surface of the water spray pipe 13, and the plurality of water spray holes are evenly distributed along the length direction of the water spray pipe 13. One end of the water spray pipe 13 is connected to one end of a water supply pipe 15, and the other end of the water supply pipe 15 is connected to the water outlet end of a water pump 16. The water inlet end of the water pump 16 is connected to the first port of a three-way control valve 19, and the second port of the three-way control valve 19 is connected to a liquid storage tank 20 through a second branch pipeline, and the liquid storage tank 20 is arranged in a control cabinet 18. The third port of the three-way control valve 19 is connected to a water storage tank 21 through a third branch pipeline, and the water storage tank 21 is arranged in the control cabinet 18. When cleaning the air side end face of the air cathode, clean water for cleaning is stored in the water tank 21, and cleaning detergent is stored in the liquid tank 20. When clean water flushing is required, the water supply pipe 15 and the water tank 21 are connected through the three-way control valve 18. When detergent flushing is required, the water supply pipe 15 and the liquid tank 20 are connected through the three-way control valve 18.

[0022] In order to improve the cleaning effect of the cleaning brush 9, as Figure 2 As shown, an air jet pipe 12 is arranged between the two lifting supports 8, and the two ends of the air jet pipe 12 are respectively fixed on the two lifting supports 8. A plurality of air jet holes are arranged on the surface of the air jet pipe 12, and the plurality of air jet holes are evenly distributed along the length direction of the air jet pipe 12. One end of the air jet pipe 12 is connected to one end of an air supply pipe 14, and the other end of the air supply pipe 14 is connected to an air compressor 17, and the air compressor 17 is arranged in a control cabinet 18. After cleaning the air side end face of the air cathode, the air jet pipe 12 can spray pressurized air to the air side end face of the air cathode to dry the air side end face of the air cathode.

[0023] like Figure 1 and Figure 3 As shown, an air cathode positioning mechanism is provided at the open end of the water collecting tank 4 , and the air cathode positioning mechanism can realize the positioning of the air cathode 27 in the water collecting tank 4 , ensuring that air cathodes 27 of different sizes can be positioned in the water collecting tank 4 .

[0024] like Figure 3 As shown, the air cathode positioning mechanism includes a thickness adjustment plate 2 transversely arranged at the open end of the water collecting tank 4 and a width adjustment plate 3 longitudinally arranged at the open end of the water collecting tank 4, and the two ends of the thickness adjustment plate 2 are respectively connected to the left and right sides of the upper end surface of the water collecting tank 1 through the first adjustment bolt 23. A long waist-shaped first adjustment groove 24 is set at the position where the first adjustment bolt 23 is connected to the left and right sides of the upper end surface of the water collecting tank 1, and the first adjustment bolt 23 can adjust the installation position along the first adjustment groove 24. The lower end of the first adjustment bolt 23 is connected to the first locking nut, and the first locking nut can lock the position of the first adjustment bolt 23 in the first adjustment groove 24.

[0025] like Figure 3 As shown, the front and rear ends of the width adjustment plate 3 are connected to the front and rear sides of the upper end face of the water collecting tank 1 through the second adjustment bolts 25, respectively, and the middle part of the width adjustment plate 3 is connected to the thickness adjustment plate 2 through the second adjustment bolts 25. A long waist-shaped second adjustment groove 26 is set at the position where the second adjustment bolts 25 are connected to the front and rear sides of the upper end face of the water collecting tank 1, and a long waist-shaped second adjustment groove 26 is set at the position where the second adjustment bolts 25 are connected on the thickness adjustment plate 2. The second adjustment bolt 25 can adjust the installation position along the second adjustment groove 26, and the lower end of the second adjustment bolt 25 is connected to the second locking nut, which can lock the position of the second adjustment bolt 25 in the second adjustment groove 26.

[0026] When the air cathode is placed in the water collecting tank 4, the front and rear positions of the thickness adjustment plate 2 are first adjusted so that the thickness adjustment plate 2 is close to the air side end surface of the air cathode, and then the first adjustment bolt 23 is locked by the first locking nut. Next, the left and right positions of the width adjustment plate 3 are adjusted so that the width adjustment plate 3 is close to the side of the air cathode, and then the second adjustment bolt 25 is locked by the second locking nut, and finally the positioning of the air cathode in the water collecting tank 4 is achieved.

[0027] like Figure 3 As shown, a drain port 22 is provided on the bottom side of the water collecting tank 1 , and the drain port 22 is connected to the water collecting tank 4 . The drain port 22 can discharge the liquid collected in the water collecting tank 4 out of the water collecting tank 1 .

[0028] The working principle of the utility model is as follows: when cleaning the air cathode, first place the air cathode in the water collecting tank 4, and realize the positioning of the air cathode in the water collecting tank 4 through the air cathode positioning mechanism, so as to ensure that air cathodes of different sizes can be positioned and set in the water collecting tank 4. Then, the adjusting cylinder 5 drives the adjusting bracket 6 to adjust the distance with the air cathode 27, so that the cleaning brush 9 is closely attached to the air side end face of the air cathode. Then, the driving motor 10 and the linear slide 7 are turned on, and the cleaning brush 9 moves up and down to complete the brushing of the air side end face of the air cathode. When the cleaning brush 9 starts to brush for the first time, the water spray pipe 13 and the air jet pipe 12 do not work. When the cleaning brush 9 starts to brush for the second time, the water spray pipe 13 sprays water mist. When the cleaning brush 9 starts to brush for the third time, the water spray pipe 13 sprays cleaning agent. When the cleaning brush 9 starts to brush for the fourth time, the water spray pipe 13 sprays water mist. When the cleaning brush 9 starts the fifth and sixth times of brushing, the water spray pipe 13 is closed, and the air jet pipe 12 then sprays out pressurized air to dry the air side end surface of the air cathode. According to the above sequence, the cleaning and brushing of the air side end surface of the air cathode is completed.

[0029] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. An air cathode cleaning device, comprising a water collecting tank (1), characterized in that: A water collecting tank (4) is arranged in the water collecting tank (1), and adjusting cylinders (5) are respectively fixed horizontally on the left and right sides of the water collecting tank (1), and the driving ends of the two adjusting cylinders (5) are respectively connected to the left and right sides of the adjusting bracket (6); a door frame (11) is fixed on the upper part of the adjusting bracket (6), and linear slides (7) are respectively arranged vertically on the left and right sides of the door frame (11), and the two linear slides (7) are respectively connected to lifting supports (8), and a cleaning brush (9) is horizontally arranged between the two lifting supports (8), and the two ends of the cleaning brush (9) are connected to the lifting supports (8) through bearings, and one end of the cleaning brush (9) is connected to one end of a driving motor (10) through a coupling, and the driving motor (10) is fixed to the side of the lifting support (8).

2. The air cathode cleaning device according to claim 1, characterized in that: A water spray pipe (13) is arranged between the two lifting supports (8), the two ends of the water spray pipe (13) are respectively fixed on the two lifting supports (8), a plurality of water spray holes are arranged on the surface of the water spray pipe (13), and the plurality of water spray holes are evenly distributed along the length direction of the water spray pipe (13), one end of the water spray pipe (13) is connected to one end of a water supply pipe (15), the other end of the water supply pipe (15) is connected to a water outlet of a water pump (16), the water inlet of the water pump (16) is connected to a first port of a three-way control valve (19), the second port of the three-way control valve (19) is connected to a liquid storage tank (20) via a second branch pipeline, the liquid storage tank (20) is arranged in a control cabinet (18), the third port of the three-way control valve (19) is connected to a water storage tank (21) via a third branch pipeline, and the water storage tank (21) is arranged in the control cabinet (18).

3. The air cathode cleaning device according to claim 2, characterized in that: An air jet pipe (12) is arranged between the two lifting supports (8), and both ends of the air jet pipe (12) are respectively fixed on the two lifting supports (8). A plurality of air jet holes are arranged on the surface of the air jet pipe (12), and the plurality of air jet holes are evenly distributed along the length direction of the air jet pipe (12). One end of the air jet pipe (12) is connected to one end of an air supply pipe (14), and the other end of the air supply pipe (14) is connected to an air compressor (17). The air compressor (17) is arranged in a control cabinet (18).

4. The air cathode cleaning device according to claim 3, characterized in that: An air cathode positioning mechanism is provided at the open end of the water collecting tank (4), and the air cathode positioning mechanism can realize the positioning of the air cathode in the water collecting tank (4).

5. The air cathode cleaning device according to claim 4, characterized in that: The air cathode positioning mechanism comprises a thickness adjustment plate (2) arranged transversely at the open end of the water collecting tank (4) and a width adjustment plate (3) arranged longitudinally at the open end of the water collecting tank (4); the two ends of the thickness adjustment plate (2) are respectively connected to the left and right sides of the upper end surface of the water collecting tank (1) through first adjustment bolts (23); a long waist-shaped first adjustment groove (24) is arranged at the position where the left and right sides of the upper end surface of the water collecting tank (1) are connected to the first adjustment bolt (23); the first adjustment bolt (23) can adjust the installation position along the first adjustment groove (24); the lower end of the first adjustment bolt (23) is connected to a first locking nut; the first locking nut can lock the position of the first adjustment bolt (23) in the first adjustment groove (24); the width adjustment plate (3 ) are connected to the front and rear sides of the upper end of the water collecting box (1) through second adjusting bolts (25) at their front and rear ends respectively; the middle part of the width adjusting plate (3) is connected to the thickness adjusting plate (2) through the second adjusting bolts (25); a long waist-shaped second adjusting groove (26) is provided at the position where the second adjusting bolts (25) are connected to the front and rear sides of the upper end of the water collecting box (1); a long waist-shaped second adjusting groove (26) is provided at the position where the second adjusting bolts (25) are connected to the thickness adjusting plate (2); the second adjusting bolt (25) can adjust the installation position along the second adjusting groove (26); the lower end of the second adjusting bolt (25) is connected to a second locking nut; the second locking nut can lock the position of the second adjusting bolt (25) in the second adjusting groove (26).

6. The air cathode cleaning device according to claim 5, characterized in that: A drainage port (22) is provided on the bottom side of the water collecting tank (1), the drainage port (22) is connected to the water collecting tank (4), and the drainage port (22) can discharge the liquid collected in the water collecting tank (4) out of the water collecting tank (1).

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